Cleaning equipment for repairing adsorption capacity of activated carbon filter material

Abstract

This utility model discloses a cleaning device for restoring the adsorption capacity of activated carbon filter media, comprising an ultrasonic cleaning device, a lifting device, a translation device, and a control device. The ultrasonic cleaning device is installed below the lifting device to perform ultrasonic treatment on the activated carbon filter media to be repaired. The lifting device is installed on the translation device to raise or lower the ultrasonic cleaning device. The control device is installed on the translation device and at the edge of the activated carbon filter, used to control the opening and closing of the ultrasonic cleaning device, the raising and lowering of the lifting device, and the left and right movement of the translation device. This cleaning device is used for ultrasonic cleaning of activated carbon filter media in drinking water treatment processes. It uses ultrasonic bubbles to remove contaminants from the filter media pores, achieving timely restorative auxiliary cleaning of the activated carbon filter media. After restorative cleaning, the filter exhibits high and stable organic matter removal efficiency, significantly restoring the adsorption capacity of the activated carbon.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and to an ultrasonic cleaning device, particularly an ultrasonic device for repairing and enhancing the adsorption capacity of activated carbon in activated carbon filters. This device removes organic matter adsorbed in water by activated carbon and is a modular, portable, and combinable ultrasonic device. Background Technology

[0002] Activated carbon is an adsorbent material that exhibits excellent removal capabilities for odors, organic pollutants, and other pollutants in water due to its large specific surface area and fine pore structure. Moreover, because of its wide availability, activated carbon filters have become the most mature advanced treatment technology in the field of drinking water treatment, or it is used in the tertiary treatment process of sewage treatment plants, playing an important role in removing organic pollutants.

[0003] During long-term operation, the pores of activated carbon filters are easily clogged, leading to a decline in the adsorption performance of the activated carbon. Although biodegradation can restore some of the adsorption capacity of activated carbon, as the usage time increases, large molecules such as humic substances adhere to the surface of the activated carbon, and irreversible adsorption continues to increase. At the same time, a large amount of natural organic matter is stably present in the water, reducing the driving force for activated carbon adsorption. The accumulation of organic matter, inorganic matter, dead cells, and microbial products directly occupies the adsorption sites and pores of activated carbon, resulting in a decrease in the adsorption capacity and driving force of activated carbon for adsorbing organic matter.

[0004] Therefore, periodically cleaning the pores of activated carbon and transforming irreversible adsorption into reversible adsorption through human intervention is particularly important. The routine human intervention measure for activated carbon filter operation is backwashing, which uses water washing or a combination of air and water washing to prevent filter clogging and microbial leakage, but it has little effect on increasing its adsorption capacity.

[0005] Currently, the conventional maintenance method for activated carbon tanks in water plants is water flushing and backwashing. This method has limited ability to deeply clean activated carbon. After a period of operation, the adsorption effect of activated carbon is difficult to restore to an ideal state. The current solution to this situation is to directly replace the activated carbon, which requires manpower, has a long cycle and high cost, causes great waste, and has low environmental protection.

[0006] Therefore, the key is to develop a device that can enhance and restore the adsorption capacity of activated carbon filters by performing enhanced backwashing without affecting production. Addressing the challenges of activated carbon filter operation and maintenance, the applicant has developed a modular in-situ ultrasonic remediation device. This device is activated during the filter backwashing phase to repair the filter. After repair, it can be moved to other units, offering multiple advantages such as cost savings, flexible assembly, and ease of operation. It shows promising application prospects in responding to sudden organic pollution events and seasonal water quality changes. Utility Model Content

[0007] The purpose of this invention is to address the technical problems existing in the daily maintenance and backwashing of activated carbon filters and activated carbon filter media in the current tap water production process. It provides a cleaning device and treatment method for restoring the adsorption capacity of activated carbon filter media. This invention allows for in-situ repair of the filter without affecting tap water production, significantly improving the adsorption capacity of activated carbon filter media in drinking water purification processes. The cleaning is thorough, and the activated carbon adsorption capacity is quickly restored. It can quickly and comprehensively clean the entire activated carbon filter media without negatively impacting the properties of the activated carbon, thereby extending the operating cycle and service life of the activated carbon filter, reducing the frequency of activated carbon replacement, and lowering the operating costs of water plants. It also has advantages in emergency response to sudden organic pollution, enabling rapid response to extreme weather and sudden changes in water quality, contributing to the normal and efficient operation of the water treatment system and providing strong protection for water supply safety. Furthermore, the equipment is lightweight, flexible, and easy to assemble and disassemble, balancing space saving and high economy while ensuring processing capacity, thus reducing construction and maintenance costs. Simultaneously, the equipment has a high degree of automation, is simple to operate, and is easy for operators to use.

[0008] To achieve the purpose of this utility model, one aspect of this utility model is to provide a cleaning device for restoring the adsorption capacity of activated carbon filter media, including an ultrasonic cleaning device, a lifting device, a translation device, and a control device, wherein...

[0009] Ultrasonic cleaning device: Installed at the bottom of the lifting device, it is used to perform ultrasonic treatment on the filter media of the activated carbon filter bed to be repaired. Through the physical and chemical action of the low-frequency sound waves emitted by the ultrasonic plate, the organic matter adsorbed on the activated carbon filter media is desorbed, thereby repairing the activated carbon.

[0010] Lifting device: Installed on the translation device, used to lift or lower the ultrasonic cleaning device, so that the ultrasonic cleaning device moves up and down in the depth direction of the activated carbon filter to be repaired, that is, to take out or insert the ultrasonic cleaning device into the filter media layer.

[0011] Translation device: Installed on the upper part of the activated carbon filter to be repaired, it is used to move the lifting device horizontally left and right or back and forth, thereby driving the ultrasonic cleaning device to move horizontally left and right or back and forth. By moving the translation device, the blind spots of ultrasonic cleaning and repair are reduced, so that the entire activated carbon filter media is completely cleaned.

[0012] Control device: Installed on the translation device and at the edge of the filter tank, used to regulate the start and stop of the ultrasonic cleaning device, the ultrasonic emission frequency, emission power, and running time; regulate the horizontal movement distance of the translation device; and regulate the rising and falling distance of the lifting device.

[0013] The control device incorporates an intelligent automated control system. Operators can intuitively understand the position and status of each component of the equipment through a touch screen display, and conveniently control the start / stop of the ultrasonic cleaning device, the ultrasonic emission frequency, emission power, and running time; adjust the horizontal movement distance of the translation device to regulate the spacing of the ultrasonic transducers; and adjust the rising and falling distance of the lifting device to increase the thickness of the activated carbon filter material coverage, reduce the blind zone of ultrasonic repair, and make the ultrasonic range larger and more effective. This ensures the stable, orderly, and efficient operation of the cleaning equipment. Simultaneously, the control device supplies power to the entire equipment and includes individual component power switches and a main power switch, facilitating regular maintenance and ensuring electrical safety.

[0014] In particular, the ultrasonic cleaning device includes: an ultrasonic vibrating plate and an ultrasonic power supply cabinet that provides power to the ultrasonic vibrating plate. Several purge generators connected to the ultrasonic power supply cabinet are fixedly installed inside the ultrasonic vibrating plate. After being powered on, they emit ultrasonic waves to perform ultrasonic cleaning treatment on the filter media of the activated carbon filter.

[0015] In particular, the ultrasonic vibrating plate includes a vibrating part and a purging part, which are separated into two independent spaces by a partition. The purging part is located below the vibrating part and the vibrating part and the purging part are integrally connected. Several ultrasonic generators are fixedly installed inside the vibrating part. Air holes are opened in the lower part of the purging part. During the process of the ultrasonic cleaning device moving downward and inserting into the activated carbon filter layer, gas is blown out through the air holes to loosen the filter material, so that the ultrasonic vibrating plate can smoothly descend into the filter material layer.

[0016] The number of ultrasonic cleaning devices is consistent with the number of secondary beams, with one ultrasonic cleaning device installed at the bottom of each secondary beam.

[0017] The ultrasonic vibrating plate extends along the length of the secondary beam, that is, it is parallel to the width of the activated carbon filter. The length of the vibrating part of the ultrasonic vibrating plate is parallel to the width wall of the activated carbon filter, and matches the length of the activated carbon filter in the width direction.

[0018] In particular, the purging section is a hollow right triangular prism with two parallel end faces that are isosceles triangles. The plane formed by the base of the isosceles triangle extending along the length of the vibrating section (the width of the activated carbon filter) is the bottom side of the purging section. The two sides of the isosceles triangle extending along the length of the vibrating section form two planes that are the waist sides of the purging section. The bottom side of the purging section is integrally connected to the bottom surface of the vibrating section. The straight line formed by the intersection of the two waist sides of the purging section, i.e., the vertex of the isosceles triangle, extending along the length of the vibrating section, is the apex line of the purging section. The apex line is rounded to form an arc section.

[0019] In particular, the air holes are located below the two waist sides of the blowing section and are arranged in a row along the length of the vibrating section.

[0020] In particular, the distance between the location of the air vent and the top of the arc of the purging section is 2-5mm.

[0021] In particular, the translation device includes:

[0022] Two main beams, two or more secondary beams, and secondary beam moving components, secondary beam moving limiting components, and secondary beam ranging components installed on the secondary beams, wherein:

[0023] The main beams are fixed to the upper part of the pool wall along the length of the activated carbon filter to be repaired;

[0024] The secondary beams are installed above the main beams, perpendicular to the main beams, and parallel to each other. The secondary beams can move left and right or back and forth along the length of the main beams.

[0025] The secondary beam moving assembly is used to move the secondary beam horizontally left and right or forward and backward.

[0026] The secondary beam movement limiting component is used to prevent the secondary beam from shifting during horizontal movement, ensuring that the secondary beam always moves horizontally along the length of the main beam.

[0027] The secondary beam distance measuring component is used to measure the distance the secondary beam moves on the main beam, adjust the spacing between two adjacent secondary beams, and adjust the spacing between the secondary beam and the filter wall in the width direction to avoid collisions between secondary beams and between the secondary beam and the filter wall.

[0028] Offset refers to the change in distance from the left and right ends of the main beam in the width direction due to uneven friction during the movement of the rollers; derailment occurs when there are small obstacles such as carbon particles on the upper surface of the main beam or when the rollers roll too fast and are affected by inertia, causing the contact surface of the rollers of the traveling trolley to leave the surface of the main beam.

[0029] In particular, the secondary beam moving assembly includes a driving module and a rolling module, wherein: a secondary beam rolling module is fixed at each end of each secondary beam, and the rolling module is disposed on the upper surface of the main beam. The secondary beam rolling module rolls on the upper surface of the main beam, thereby driving the secondary beam to move on the main beam; the secondary beam driving module is installed on the left or right side of the secondary beam; the secondary beam driving module drives the rolling module to roll on the upper surface of the main beam.

[0030] In particular, the secondary beam ranging assembly includes a horizontal displacement sensor for measuring the distance the secondary beam moves on the upper surface of the main beam.

[0031] In particular, the secondary beam ranging assembly also includes anti-collision sensors; horizontal displacement sensors are fixedly installed on the left or right side of each secondary beam; at least one anti-collision sensor is installed on the left and right sides of each secondary beam to adjust the distance between two adjacent secondary beams and the distance between the secondary beams and the filter wall in the width direction, so as to avoid collisions between secondary beams and between secondary beams and the filter wall.

[0032] In particular, the installation positions of the secondary beam anti-collision sensor and the secondary beam drive module are staggered.

[0033] In particular, the secondary beam movement limiting component is connected to the main beam and the secondary beam movement component (rolling module), and the secondary beam movement limiting component moves left and right or back and forth along the main beam.

[0034] The secondary beam drive module is used to drive the secondary beam rolling module to generate rolling displacement.

[0035] The secondary beam movement limiting assembly includes: a limiting bracket, a limiting wheel, and a limiting block, wherein: the limiting bracket is connected to the secondary beam, the secondary beam movement assembly, and the main beam; the limiting block is fixed on the limiting bracket and has a slot, which engages with the main beam, the slot matching the thickness of the upper flange plate of the main beam, and slides along the length of the main beam; the limiting wheel is fixed on the limiting bracket and located below the limiting block, the limiting wheel contacting the lower surface of the upper flange plate of the main beam, and rolls as the secondary beam moves on the main beam, preventing the secondary beam from displacing vertically on the surface of the activated carbon tank.

[0036] In particular, the limiting bracket is fixedly connected to the rolling module of the main beam, secondary beam, and secondary beam moving assembly.

[0037] In particular, the secondary beam drive module includes a drive motor and a secondary beam drive shaft, wherein the drive motor and drive shaft are mounted on the side (left or right) of the secondary beam; the drive shaft extends along the length of the secondary beam; the length of the secondary beam matches the width of the activated carbon filter.

[0038] The length of the secondary beam drive shaft matches the length of the secondary beam; both ends of the secondary beam drive shaft are connected (rotatably connected) to the secondary beam moving components located at both ends of the secondary beam. The secondary beam drive shaft is connected to the drive wheel of the secondary beam moving component, and the drive shaft drives the drive wheel to rotate.

[0039] In particular, the secondary beam has two sides along the width of the activated carbon filter, and the secondary beam drive motor and transmission shaft are mounted on either side.

[0040] In particular, the maximum spacing between two adjacent secondary beams is 75-120cm.

[0041] In particular, the anti-collision sensors of the secondary beam ranging component are switch sensors installed on the left and right sides of the secondary beam. During the horizontal movement of the secondary beam, they prevent collisions between secondary beams or between the secondary beam and the walls of the activated carbon filter, water collection tank, or other related bodies in the width direction.

[0042] In particular, the anti-collision sensor is preferably a proximity switch sensor; the horizontal displacement sensor is used for laser ranging to accurately locate the movement distance of the secondary beam.

[0043] In particular, the secondary beam rolling module (also known as the traveling trolley) includes: a main-driven wheel set, also known as a moving roller set or a protective shell, wherein the moving roller set includes a driving wheel and a driven wheel, the driving wheel and the driven wheel are respectively fixedly installed inside the protective shell, that is, the driving wheel and the driven wheel are fixedly installed inside the protective shell fixed at both ends of the secondary beam; the driving wheel and the driven wheel are arranged in parallel along the direction of the main beam; and arranged left and right or front and back along the length direction of the main beam.

[0044] In particular, the secondary beam movement limiting assembly includes: a limiting bracket, a limiting wheel, and a limiting block, wherein: the limiting bracket is connected to the secondary beam, the secondary beam movement assembly, and the main beam; the limiting block is fixed on the limiting bracket and has a slot, which engages with the main beam, the slot matching the thickness of the upper flange plate of the main beam, and slides along the length of the main beam; the limiting wheel is fixed on the limiting bracket and located below the limiting block, the limiting wheel contacting the lower surface of the upper flange plate of the main beam, and rolls as the secondary beam moves on the main beam.

[0045] Because the secondary beam and the device on the secondary beam of this utility model are large in size and heavy in weight, and have great inertia during movement, the function of the limiting component is to prevent the lower contact surface of the roller of the secondary beam moving component from leaving the surface of the main beam due to inertia when there are small obstacles such as carbon particles on the upper surface of the main beam or when the roller rolls too fast.

[0046] The lifting device includes: a lifting platform and a lifting displacement sensor (hereinafter referred to as the lifting sensor), wherein the lifting platform is selected as a screw jack or / and a scissor lift.

[0047] In particular, the lifting device also includes a submersible extension assembly, which is fixedly installed at the bottom of the lifting platform.

[0048] In particular, when a screw jack is selected as the lifting platform, the lifting sensor is connected to the top of the screw of the screw jack; wherein the underwater extension component includes two vertically parallel extension rods and two horizontally parallel connecting rods. The extension rods and connecting rods are integrally connected, and the extension rods and connecting rods are perpendicular to each other and in the same vertical plane. The upper end of the extension rod is fixedly connected to the screw of the screw jack.

[0049] In particular, when a scissor lift is selected for the lifting stage, the lifting sensor is fixed to the side of the upper support of the lift; the underwater extension assembly is fixedly installed at the lower part of the scissor lift, wherein the underwater extension assembly includes two vertically parallel stainless steel extension rods in the same vertical plane, and the extension rods are fixedly connected to the lower support of the scissor lift (e.g., riveted, welded, bolted, etc. to the lower edge of the lower support).

[0050] The system includes a screw jack and a lifting sensor. The screw of the screw jack moves up and down along the depth direction of the activated carbon filter. The lifting sensor monitors the distance the screw of the screw jack moves up and down, and controls the distance the ultrasonic cleaning device (ultrasonic vibrating plate) moves up and down to ensure that the ultrasonic vibrating plate is accurately positioned at the depth of the activated carbon filter media during ultrasonic treatment. After ultrasonic treatment, the ultrasonic vibrating plate is raised above the water surface.

[0051] In particular, the screw jack is a double screw jack (linked screw jack), which includes one lifting motor, two reducers, two parallel linked screws, and one screw drive shaft. The screws are arranged along the depth direction of the activated carbon filter, and the screw drive shaft is perpendicular to the screws and arranged horizontally along the width direction of the activated carbon filter.

[0052] Specifically, the scissor lift includes an upper support, a scissor telescopic mechanism, a lower support, an electric cylinder assembly, and a lifting crane module. The upper and lower supports and the scissor telescopic mechanism are all made of carbon steel. The upper support of the scissor lift is fixedly connected (e.g., riveted, welded) to the lower surface of the secondary beam. The scissor telescopic mechanism is welded to the lower surface of the upper support, and the lower support is welded to the lower end of the scissor telescopic mechanism. The electric cylinder assembly is riveted and fixed to the lower edge of the upper support, one side of the scissor telescopic mechanism, and the lifting device is installed on the upper surface of the secondary beam.

[0053] The hoisting crane module includes: a hoisting motor and a reducer.

[0054] Specifically, the lifting sensor is selected as a lifting rope displacement sensor, and the rope sensor is fixedly installed on the upper surface of the secondary beam. When a screw jack is selected, the free end of the rope is fixedly installed on the top of the screw; when a scissor jack is selected, the free end of the rope is fixedly installed on the upper surface of the lower support.

[0055] The control device includes: a main electrical control cabinet and secondary beam electrical control cabinets, wherein:

[0056] Main electrical control cabinet: Located in the corridor beside the activated carbon filter tank, it provides overall power distribution and coordinated control to the secondary beam electrical control cabinets via electrical wires, and collects signals from the secondary beam electrical control cabinets (sub-control devices) via a local area network. To enable mobile monitoring of system operation and control system start / stop, it supports three basic control modes: automatic, APP remote control, and local manual operation. A handheld mobile terminal and communication card are included with the system. Device parameter settings include: ultrasonic transducer status settings, adjacent ultrasonic transducer spacing settings, cleaning position settings, cleaning depth settings (i.e., setting the depth to which the ultrasonic transducer penetrates the activated carbon filter layer), ultrasonic transducer working stage settings, and ultrasonic transducer working time settings.

[0057] Secondary beam electrical control cabinet: The secondary beam electrical control cabinet is fixedly installed on the upper part of the secondary beam, with one cabinet installed on each secondary beam. It is connected to an external power supply through the main electrical control cabinet, providing power to the ultrasonic power cabinet, lifting motor and lifting sensor of the lifting device, and drive motor, horizontal displacement sensor and anti-collision sensor of the translation device installed on the secondary beam. At the same time, it receives electrical signals from the lifting sensor, horizontal displacement sensor and anti-collision sensor to control the start and stop of the screw lifting motor and drive motor.

[0058] The control device used in this invention is a conventional power distribution control device in the field. The main control device is externally equipped with a power indicator light, a touch panel, and an emergency stop button. Internally, it includes a main power switch, power switches for each sub-control device (secondary beam control cabinet), connecting wires for each sub-control device, a local area network (LAN) connection port, and a reserved power port. The top of each sub-control device (secondary beam control cabinet) has a connection indicator light, and the internal components house the power supply and communication lines for the components mounted on that secondary beam.

[0059] Compared with the prior art, the ultrasonic processing device of this utility model has the following advantages:

[0060] 1. The cleaning equipment of this utility model is used for ultrasonic cleaning of activated carbon filter media in drinking water treatment processes. It provides timely restorative auxiliary cleaning of activated carbon filter media, and uses ultrasonic bubbles to remove pollutants adsorbed in the pores of the filter media. The organic matter removal efficiency is high and stable, and the adsorption capacity of activated carbon is significantly restored.

[0061] 2. The device of this utility model is lightweight and occupies a small area. It does not change the layout of the water plant structure, does not affect normal production operation, and is convenient for water plant to disassemble and move commonly used equipment (such as overhead cranes). The modular design makes the device highly flexible and applicable to activated carbon filter tanks of various specifications. At the same time, due to the mobility of the device, it does not require a dedicated tank, saving consumables, labor and cost, and has a strong economic advantage.

[0062] 3. The device of this invention can move flexibly on the horizontal plane of the activated carbon filter, and the spacing of the ultrasonic plates of the ultrasonic cleaning device can be flexibly adjusted. Furthermore, the lifting device moves vertically to raise or lower the ultrasonic plates of the ultrasonic cleaning device, and the descent depth of the ultrasonic plates can be flexibly adjusted, facilitating comprehensive cleaning of the filter media in the carbon tank. While ensuring functionality, this cleaning device also considers operational safety and stability. Through optimized design of the limiting components, it prevents accidental displacement of the moving components during the translation process, avoiding the danger and cleaning process stoppage caused by the equipment tilting and detaching from the moving track (main beam). This significantly reduces the probability of requiring manual adjustment or even maintenance. Simultaneously, the design of the lifting device solves the problem of insufficient descent depth due to filter media obstruction, making ultrasonic cleaning more thorough.

[0063] 4. The device of this utility model has air holes at the bottom of the ultrasonic vibrating plate, so that when the ultrasonic vibrating plate descends to the activated carbon filter material layer, the carbon layer is swept through the air holes by aeration, so that the ultrasonic vibrating plate descends smoothly while avoiding damage to the carbon filter material.

[0064] 5. This utility model device effectively extends the backwashing cycle and filter media replacement cycle of activated carbon filter, saving operation and maintenance costs and human resources. In addition, it prevents the activated carbon filter from being rapidly penetrated in extreme weather during the flood season and in the case of abnormal influent water quality, thereby improving the pressure resistance of the water supply system and providing stronger protection for emergency treatment.

[0065] 6. This utility model device is equipped with a highly functional and automated automatic control system. After assembly, operators can complete the operation settings from the filter bed bank or even remotely; the control interface is clear and concise, easy to operate, and requires no complicated training; it covers complete functions, is highly flexible, and can set up various operating modes according to application requirements. Attached Figure Description

[0066] Figure 1A This is a schematic diagram of a cleaning device for repairing the adsorption capacity of activated carbon filter media according to the present invention.

[0067] Figure 1B This is a schematic diagram of the second structure of the cleaning equipment of this utility model;

[0068] Figure 1C This is a schematic diagram of the third structure of the cleaning equipment of this utility model;

[0069] Figure 2 This is a top view of the main beam and secondary beam of the translation device of the cleaning equipment of this utility model (excluding the secondary beam moving component, moving limiting component, and distance measuring component);

[0070] Figure 2A This is a front view schematic diagram of a single secondary beam, a moving component, a driving component, and a collision avoidance component;

[0071] Figure 2B This is a top view of a single secondary beam, a moving component, a driving component, and a collision avoidance component.

[0072] Figure 2C This is a schematic diagram of the mobile component structure;

[0073] Figure 2D This is a schematic diagram of another structure for a moving component;

[0074] Figure 2E This is the front view of the secondary beam movement limiting assembly;

[0075] Figure 2F This is a top view of the secondary beam movement limiting assembly;

[0076] Figure 2G Left view of the secondary beam movement limiting assembly (limiting wheels and limiting block fixing points are not shown);

[0077] Figure 3A This is a front view of the ultrasonic transducer plate of an ultrasonic cleaning device.

[0078] Figure 3B for Figure 3A A sectional view along line AA;

[0079] Figure 3C This is a top view of the ultrasonic transducer plate of an ultrasonic cleaning device.

[0080] Figure 3D This is an enlarged schematic diagram of the purging section of an ultrasonic cleaning device;

[0081] Figure 3E This is a schematic diagram showing the distribution of ultrasonic generators within an ultrasonic cleaning device. Figure 3B Sectional view along the BB line;

[0082] Figure 4A This is a schematic diagram of the lifting device structure in Implementation Method 1;

[0083] Figure 4B This is a schematic diagram of the underwater extension component structure in Embodiment 1;

[0084] Figure 4C This is a schematic diagram of the lifting device, secondary beam, and ultrasonic cleaning device in Implementation Method 1.

[0085] Figure 4D This is a schematic diagram of the lifting device structure in Implementation Method 2.

[0086] Explanation of reference numerals in the attached figures

[0087] 1. Ultrasonic vibrating plate; 11. Vibrating part; 12. Purging part; 121. Isosceles end face of purging part; 122. Waist side of purging part; 13. Partition plate; 14. Exhaust port; 15. Air inlet pipe; 16. Ultrasonic vibrating plate flange; 17. Ultrasonic power cord hole; 18. Arc part; 2. Ultrasonic generator; 21. Secondary beam electrical control cabinet; 22. Ultrasonic power cabinet; 3. Secondary beam; 31. Secondary beam drive motor; 32. First angle steel; 32A. Second angle steel; 33. Limiting wheel; 34. Limiting block; 35. Drive shaft; 4. First main beam; 4A. Second main beam; 41. Screw lifting motor; 42. Lifting sensor; 421. Stainless steel pull rope; 43. Lead screw; 431. Lead screw horizontal frame; 44. Lead screw drive shaft; 44A. Lead screw assembly; 45. Lifting crane module; 45A. Lowering electric cylinder; 46. Extension rod; 46A. Extension rod flange; 47. Connecting rod; 48. Scissor lift telescopic mechanism; 49. Upper bracket; 49A. Lower bracket; 5. Activated carbon filter; 51. Filter media; 6. Protective shell; 7. Drive wheel; 8. Driven wheel; 9. Anti-collision sensor; 10. Anti-collision sensor fixing rod; 100. Horizontal displacement sensor; 101. Upper sprocket; 102. Lower sprocket; 103. Chain; 104. Sprocket cover. Detailed Implementation

[0088] The beneficial effects of this utility model are further described below through specific embodiments. These embodiments are merely exemplary and do not constitute any limitation on the scope of this utility model. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of this utility model without departing from the structural concept and scope of use of this utility model, but all such modifications and substitutions fall within the protection scope of this utility model.

[0089] The cleaning equipment for restoring the adsorption capacity of activated carbon filter media according to this invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate this invention, but are not intended to limit the scope of this invention.

[0090] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Example:

[0091] The cleaning equipment for repairing the adsorption capacity of activated carbon filter media in this utility model is installed at the top of the activated carbon filter in a waterworks. The activated carbon filter in a waterworks is usually divided into two half-filters (also known as half-pools) on the left and right or front and back to save costs.

[0092] This invention is illustrated using one and a half activated carbon filter beds as an example. The description is based on the following dimensions: length of the half-pool from left to right, width from front to back, and depth from top to bottom.

[0093] like Figure 1A , 1B 1C, the cleaning equipment for restoring the adsorption capacity of activated carbon filter media of this utility model includes: an ultrasonic cleaning device, a lifting device, a translation device, and a control device, wherein,

[0094] Ultrasonic cleaning device: Installed at the bottom of the lifting device, it is used to perform ultrasonic treatment on the filter media of the activated carbon filter bed to be repaired. Through the physical and chemical action of the low-frequency sound waves emitted by the ultrasonic generator in the ultrasonic plate, the organic matter adsorbed on the activated carbon filter media is desorbed, thereby achieving the repair of activated carbon.

[0095] Lifting device: Installed on the translation device, used to lift or lower the ultrasonic cleaning device, so that the ultrasonic cleaning device moves up and down in the depth direction of the activated carbon filter to be repaired, that is, to take out or insert the ultrasonic cleaning device into the filter media layer.

[0096] Translation device: Installed on the upper part of the activated carbon filter to be repaired, it is used to move the lifting device horizontally left and right or back and forth, thereby driving the ultrasonic cleaning device to move horizontally left and right or back and forth. By moving the translation device, the blind zone of ultrasonic cleaning and repair is reduced, so that the entire activated carbon filter media is completely cleaned.

[0097] Control device: Installed on the translation device and at the edge of the filter tank, used to regulate the start and stop of the ultrasonic cleaning device, the ultrasonic emission frequency, emission power, and running time; regulate the horizontal movement distance of the translation device; and regulate the rising and falling distance of the lifting device.

[0098] The ultrasonic cleaning device uses ultrasonic waves to treat the filter media of the activated carbon filter bed to be repaired. The ultrasonic waves remove pollutants adsorbed in the micropores of the activated carbon through cavitation, restoring the adsorption capacity of the activated carbon. In other words, the physical and chemical action of low-frequency sound waves desorbs the organic matter adsorbed on the activated carbon filter media, thereby restoring the adsorption capacity of the activated carbon.

[0099] The lifting device is used to raise or lower the ultrasonic cleaning device, allowing it to move up and down along the depth of the filter media layer in the activated carbon filter to be repaired. In the initial stage of operation, the ultrasonic plate of the ultrasonic cleaning device is inserted into the filter media layer of the activated carbon filter to be repaired, and the submersion depth is adjusted to ensure a more thorough repair process. After ultrasonic treatment, the ultrasonic plate is raised out of the water to avoid affecting the normal operation of the activated carbon filter.

[0100] The translation device is used to move the lifting device left and right or back and forth in the horizontal direction (i.e., within the horizontal plane), thereby driving the ultrasonic cleaning device to move left and right or back and forth in the horizontal direction. The distance between the ultrasonic transducer plates can be adjusted by the translation device to reduce the blind zone of ultrasonic repair, thereby increasing the ultrasonic cleaning range and making the effect more complete.

[0101] The control device is used to adjust the horizontal position of the translation device, thereby driving the adjustment of the horizontal position of the lifting device; to adjust the lifting height of the lifting device; to regulate the start / stop, frequency, power, and running time of the ultrasonic generator of the ultrasonic cleaning device; and to ensure that the device operates smoothly, orderly, and efficiently.

[0102] In order to better meet the cleaning needs of activated carbon tanks of different types, since the ultrasonic transmission medium is water, the activated carbon filter media will block and weaken the propagation of ultrasonic waves. Therefore, a single ultrasonic cleaning device has a limited effective range. By using a translation device to move the ultrasonic cleaning device within the tank, the effective range of the device can cover the entire activated carbon tank to be treated.

[0103] like Figure 2 The translation device includes: two main beams 4 and 4A, two or more secondary beams 3, and secondary beam moving components, secondary beam moving limiting components, and secondary beam ranging components fixed on the secondary beams. The main beams are located on the upper part of the pool wall of each half-pool, placed horizontally along the length of the half-pool, with two main beams in each half-pool. The main beam located on the upper part of the front pool wall of the half-pool is the first main beam 4, and the main beam located on the upper part of the rear pool wall of the half-pool is the second main beam 4A.

[0104] The length of the main beam matches the length of the activated carbon half-pool; the main beam is erected or anchored on the upper part of the pool wall (not shown in the figure) along the length of the half-pool. The main beam can be anchored to the upper part of the pool wall or to a support (such as a cement block) on the upper part of the pool wall. The main beam is a certain distance away from the ground of the pool wall.

[0105] The main beam is an "H"-shaped steel beam with its web perpendicular to the ground. One flange is close to the ground, while the other flange serves as the track for the horizontal movement of the secondary beam. One side of the "H"-shaped steel beam has a notch facing the filter bed and extends along the length of the semi-filter bed. To widen the track for the secondary beam, a double-web "H"-shaped steel beam can be used, or two "H"-shaped steel beams can be welded together to form a double-web "H"-shaped steel beam for use as the main beam. The web is perpendicular to the ground.

[0106] Secondary beam 3 is positioned above the two main beams, perpendicular to them and parallel to the wall of the activated carbon half-pool (not shown in the figure) along its width. The secondary beam moves left and right or forward and backward along the main beams, its length matching the width of the activated carbon half-pool. Multiple secondary beams are arranged parallel to each other along the length of the half-pool, such as... Figure 2 .

[0107] The secondary beams are made of square steel (or hollow square tubing), and their length matches the width of the semi-filter in the activated carbon filter. The number of secondary beams is usually determined based on the length of the semi-filter, and the spacing between two adjacent secondary beams is 75-120cm. The spacing between the secondary beams and the wall of the activated carbon filter in the width direction is also 75-120cm.

[0108] In this example, the activated carbon filter of the waterworks is 7.8m long and has 5-8 secondary beams. This example uses 7 parallel secondary beams as an example.

[0109] Two main beams are fixedly installed on the top of each half of the activated carbon filter, along the upper part of the filter wall. The main beams are erected and anchored to the top of the filter wall along the length of the carbon filter. The secondary beams can be transferred between the two half-pools; that is, after cleaning one half-pool, they can be transferred to the other half-pool for continued ultrasonic cleaning via a transfer mechanism. Of course, multiple secondary beams can be arranged in each half-pool, but this embodiment chooses the former arrangement.

[0110] like Figure 2A , 2B 2C, the secondary beam moving assembly includes: two rolling modules (i.e., traveling trolleys) fixed at both ends of each secondary beam and a drive module fixed on the secondary beam, wherein: each rolling module includes a protective shell 6, a driving wheel 7 and a driven wheel 8 fixed inside the protective shell; wherein the protective shell is fixed at both ends of the secondary beam; the driving wheel and the driven wheel are respectively fixedly installed inside the protective shell, that is, the driving wheel and the driven wheel are fixedly installed inside the protective shell; the protective shell is used for dust and water protection; the drive module includes: a secondary beam drive motor 31 and a drive transmission shaft 35, and a secondary beam drive module is fixedly installed on each secondary beam, installed on the left (or right) side of the secondary beam, for driving the driving wheel of the secondary beam rolling module to rotate, so that the rolling module rolls on the upper flange plate of the main beam, driving the secondary beam to move left and right or back and forth on the main beam, and adjusting the movement distance of the secondary beam.

[0111] The secondary beam rolling modules are fixedly installed at both ends of the secondary beam, meaning that a moving component is fixedly installed at each end of the secondary beam. The moving components are placed on the upper surface of the main beam and move left and right along the length of the main beam on the upper flange plate, thereby driving the secondary beam to move left and right along the length of the semi-filter tank on the main beam.

[0112] The protective shell is a hollow square steel sheet, welded to the end of the secondary beam. The driving and driven wheels are the same size, and the diameters of the driving and driven wheels are slightly larger than the vertical height of the protective shell square steel sheet. The bottom of the shell does not contact the upper surface of the main beam to avoid interference between the rolling module and the main beam when the module moves.

[0113] The driving wheel and driven wheel are fixed to the inner wall of the protective shell by nuts and screws. The secondary beam drive shaft is welded to the bearing of the driving wheel. The drive motor drives the secondary beam drive shaft to rotate, causing the driving wheel to rotate and the secondary beam to move. At the same time, the driven wheel rolls synchronously to ensure that the secondary beam moves horizontally and is balanced.

[0114] The driving and driven wheels are arranged in parallel along the upper surface of the main beam, allowing them to roll left and right. The axes of the driving and driven wheels are parallel to the secondary beam (i.e., parallel to the width direction of the carbon filter). The mid-sections of the two rollers along their diameters lie in the same plane. The bearings of the two rollers are welded to the inner wall of the protective shell of the secondary beam's traveling trolley. The two bearings are respectively inserted into the driving and driven wheels, which are meshed with each other. The drive motor causes the transmission shaft to rotate, thereby rotating the driving wheel. In other words, the traveling trolley containing the driving wheel moves, causing the driven wheel to rotate on the surface of the main beam, thus moving the secondary beam left and right along the main beam.

[0115] The rolling modules employ a mechanism commonly used in the field. The rolling of two modules fixed on the secondary beam drives the secondary beam to move smoothly in the horizontal plane. The driving wheel and the driven wheel are connected by conventional transmission methods in the field, such as chain drive, gear drive, belt drive, etc., to drive the driven wheel to rotate.

[0116] The above-described trolley structure is suitable for situations where the drive shaft of the drive module and the driving wheel of the secondary beam rolling module are at the same horizontal height. However, if there is a height difference between the drive shaft and the driving wheel, with the drive shaft being higher than the driving wheel, each driving wheel can be equipped with a set of sprockets (including two sprockets arranged vertically on the same vertical plane: upper sprocket 101, lower sprocket 102, and chain 103) and a sprocket cover 104. Figure 2DThe drive shaft passes through the upper sprocket shaft at both ends, and the lower sprocket is coaxial with the drive wheel. The drive wheel rotates via gears and a chain. The sprocket bearing is fixed to the outer wall of the roller cover by nuts and bolts via a bracket. The sprocket cover is attached to the surface of the trolley's protective shell using a snap-fit ​​mechanism, without affecting normal operation. When the secondary beam moves horizontally, the motor controls the drive shaft, causing the upper sprocket to rotate. This rotation, via the chain, causes the lower sprocket, coaxial with the drive wheel, to rotate synchronously, thus rotating the drive wheel.

[0117] The secondary beam drive motor is fixedly mounted on the side (left or right) of the secondary beam via a flange, typically in the middle (or center) of the side. The drive shaft extends along the left and right sides of the secondary beam, parallel to it, and is connected to the drive motor via a coupling. The length of the drive shaft matches the length of the secondary beam, and it passes through the gear hole of the secondary beam drive motor. Both ends of the drive shaft are fixedly connected to the axles of the driving wheels of the secondary beam rolling modules located at both ends of the same secondary beam. The drive motor drives the drive shaft to rotate, thereby driving the driving wheels to rotate. This causes the driving wheels connected to both ends of the drive shaft to rotate and move left and right on the main beam, thus causing the secondary beam to shift left and right on the main beam. Simultaneously, the driven wheels roll synchronously. The driven wheels ensure the stability of the secondary beam and increase the driving area.

[0118] The drive motor is a geared motor commonly used in this field, which is an integration of a speed reducer and a motor (motor), also known as a geared motor or geared motor.

[0119] The secondary beam movement limiting assembly includes a limiting bracket, a limiting wheel 33, and a limiting block 34, wherein:

[0120] The limiting bracket is connected to the secondary beam, the rolling module of the secondary beam moving assembly, and the main beam; the limiting block is fixed on the limiting bracket and has a slot, which is engaged with the main beam. The slot matches the thickness of the upper flange plate of the main beam and slides along the length of the main beam; the limiting wheel is a tubular wheel, fixed on the limiting bracket, located below the limiting block. The limiting wheel contacts the lower surface of the upper flange plate of the main beam and rolls as the secondary beam moves on the main beam, preventing the secondary beam from displacing vertically on the surface of the activated carbon tank.

[0121] like Figure 2E , 2F In this embodiment of the utility model, the limiting bracket is composed of two angle steels (equilateral angle steels, steels with equal sides and perpendicular angles), and the first angle steel 32 and the second angle steel 32A are integrally connected.

[0122] The web of the first angle steel extends along the main beam. One plane (flange) of the first angle steel is perpendicular to the upper flange of the main beam, and is called the first surface of the limiting bracket. The other plane is parallel to the upper flange of the main beam and is called the second surface of the limiting bracket. The right angle formed by the first and second surfaces of the limiting bracket faces the water surface of the activated carbon filter. The web of the second angle steel is perpendicular to the main beam. One plane of the second angle steel (called the third surface of the limiting bracket) is fixedly connected to the protective shell of the traveling trolley (e.g., by welding, riveting, or bolting), and the other plane (called the fourth surface of the limiting bracket) is fixedly connected to the side of the secondary beam (e.g., by welding, riveting, or bolting). The right angle formed by the third and fourth surfaces of the limiting bracket faces the side of the first surface of the limiting bracket.

[0123] The limiting bracket consists of two angle steels. The first angle steel and the second angle steel are integrally connected. The second angle steel is located on top of the first angle steel. The first angle steel is placed horizontally, and its waist plate is parallel to the length direction of the main beam. The second angle steel is placed vertically, and its waist plate is perpendicular to the waist plate of the first angle steel.

[0124] In this invention, the support frame, secondary beam, and protective shell of the secondary beam moving assembly are welded together. The limiting block is welded to the support frame; the central shaft of the limiting wheel is fixedly connected to the support frame by riveting.

[0125] The limiting block is made of channel steel (i.e., steel with a grooved cross-section), which is snapped onto the upper flange plate of the main beam facing the activated carbon filter. The groove of the limiting block matches the thickness of the upper flange plate of the main beam, and the upper flange plate of the main beam is fitted into the groove of the limiting block. The limiting module moves left and right along the upper flange plate of the main beam.

[0126] The limiting block is fixedly connected to the first angle steel of the limiting bracket (by welding, riveting, bolting, etc.). The second side of the limiting bracket (i.e., the horizontal flange of the first angle steel) is flush with the upper edge of the limiting block. The limiting block is only used to fill the gap between the upper flange plates of the secondary beam and the main beam, preventing the secondary beam from shifting left or right during movement.

[0127] The limiting wheels and limiting blocks are arranged parallel to each other along the depth (vertical) direction of the activated carbon filter tank. The limiting wheels and limiting blocks are located below the traveling trolley. The central axis of the limiting wheel is bolted to the vertical flange (first surface of the limiting bracket) of the first angle steel, on the same vertical plane as the limiting block, and located below the limiting block. When the limiting block is engaged with the upper flange plate of the main beam, the top of the limiting wheel is also tangentially in contact with the lower surface of the upper flange plate. As the secondary beam moves on the main beam, the limiting wheel rolls. During the movement of the secondary beam, the traveling trolley moves on the upper surface of the main beam. The limiting wheel, located below the upper flange of the main beam, provides protection. By controlling the height of the gap between the traveling trolley and the limiting wheel, the upward displacement of the moving component due to inertia is limited, preventing the secondary beam from shifting vertically on the surface of the activated carbon tank. The limiting block prevents lateral shifting, and the limiting wheel prevents vertical (upward) shifting; both are designed to prevent derailment.

[0128] like Figure 2B The secondary beam ranging assembly includes a horizontal displacement sensor 100, an anti-collision sensor 9, and a fixing rod 10 for fixing the anti-collision sensor. At least one horizontal displacement sensor is installed on each of the left and right sides of each secondary beam. The horizontal displacement sensor is a laser ranging sensor, which uses laser technology to measure the target distance. It calculates the distance by emitting a laser beam towards the target and measuring the time from emission to return (time-of-flight method) or the phase change (phase method). The anti-collision sensor is a switch-type sensor (i.e., a contactless switch), also known as a proximity switch. It detects metal objects using the principle of electromagnetic induction and converts the detection signal into an electrical signal output, thus preventing collisions between secondary beams when the horizontal displacement sensor malfunctions. At least one fixing rod 10 is bolted to each side of each of the left and right sides of each secondary beam. The fixing rod is placed horizontally, perpendicular to the secondary beam and parallel to the main beam. One end is fixed to the left or right side of the secondary beam, and the other end is equipped with an anti-collision sensor.

[0129] The horizontal displacement sensor is fixedly (riveted) mounted on the drive motor 31. The vertical installation height of the fixing rod is lower than (or higher than, in this embodiment, higher than the secondary beam drive shaft) the height of the drive shaft of the secondary beam drive module, that is, the height of the fixing rod in the vertical direction is lower than the height of the drive shaft.

[0130] The horizontal displacement sensor uses laser to detect the movement distance of the secondary beam on the main beam, adjusts the spacing between adjacent secondary beams, and adjusts the spacing between the secondary beam and the filter wall in the width direction to accurately locate the position of the secondary beam; the anti-collision sensor uses an inductive proximity switch, which senses a nearby metal object on the secondary beam through an electromagnetic field, converts the detection signal into an electrical signal output, and controls the secondary beam to stop moving, thus providing double protection to prevent collisions between adjacent secondary beams.

[0131] For safety reasons, in this specific embodiment of the invention, two anti-collision sensors are installed on each of the left and right sides of the secondary beam, that is, a total of four anti-collision sensors are installed on each secondary beam. The purpose is to prevent collisions between adjacent secondary beams during the process of moving and adjusting the spacing.

[0132] In this specific embodiment of the invention, the anti-collision sensors on each secondary beam are installed symmetrically in pairs, left and right. The fixing rods are made of iron and welded to the left and right sides of the secondary beam, or fixed to the sides of the secondary beam with bolts.

[0133] A baffle (not shown) can also be installed on the left side of each secondary beam to wrap the wires, making them waterproof, safe, and aesthetically pleasing.

[0134] The anti-collision sensors on each secondary beam are installed symmetrically in pairs, specifically at 1 / 4 and 3 / 4 of the distance from the top of the secondary beam. The anti-collision sensor on the left is installed inside the cable tray and fixed with screws and nuts. The anti-collision sensor is installed on the surface of the secondary beam body on the right side, which is symmetrical to the position of the anti-collision sensor on the left. The anti-collision sensor can also be made of angle iron. The left side is welded to the outer wall of the right side of the secondary beam, and the right side is fixed with screws and nuts to retaining rings. The retaining rings are fastened to the outer ring of the drive shaft to enhance structural stability.

[0135] When the collision avoidance sensor on the secondary beam detects a risk of collision between two adjacent secondary beams, the collision avoidance sensor emits a signal, which is transmitted via wire to the sub-control device that moves the secondary beam, thereby terminating the movement of the secondary beam.

[0136] The ultrasonic cleaning device includes: an ultrasonic transducer plate 1 and an ultrasonic power supply cabinet 22 that provides power to the ultrasonic transducer plate, such as... Figures 3A-3E ,in:

[0137] The ultrasonic power supply cabinet is fixedly installed on the secondary beam 3 of the translation device; it provides power to the ultrasonic generators 2 inside the ultrasonic transducer plate; the ultrasonic transducer plate includes a vibrating section 11 and a purging section 12 connected as one unit, and several ultrasonic generators 2 fixedly installed inside the vibrating section. The vibrating section and the purging section are divided into two independent spaces by a partition 13, with the purging section located below the vibrating section; Figure 3A , 3B .

[0138] In actual use, depending on the width of the activated carbon filter to be cleaned, two or more ultrasonic plates can be spliced ​​together to form an ultrasonic cleaning plate that matches the width of the activated carbon filter to be cleaned.

[0139] The vibrating section and the purging section are hollow inside. The vibrating section is rectangular, while the purging section is triangular prism-shaped. The purging section is horizontally positioned below the vibrating section and is integrated with it. The vibrating section consists of two ultrasonic plates arranged horizontally. The length and thickness of the vibrating section are the same as the transverse thickness of the purging section. The lengths of the vibrating and purging sections are consistent with the width of the activated carbon filter; the height of the ultrasonic plates is consistent with the depth of the activated carbon filter.

[0140] The triangular prism-shaped purging section is placed horizontally, ensuring that the height of the prism is parallel to the water surface of the filter bed. Because the prism is horizontal and its height is parallel to the water surface of the filter bed, the length of the purging section is equal to the height of the prism.

[0141] The two sides formed by the length and height of the vibrating part are simply referred to as the length-height surface of the vibrating part (or simply the left and right sides of the vibrating part); the two sides formed by the length and thickness of the vibrating part are simply referred to as the length-thickness surface of the vibrating part (or simply the upper and lower bottom surfaces of the vibrating part); the two sides formed by the height and thickness of the vibrating part are simply referred to as the height-thickness surface of the vibrating part (or simply the front and rear sides of the vibrating part).

[0142] The ultrasonic generator is fixedly installed on the inner side of one of the two long-to-high surfaces (left and right sides) of the vibrating part. The ultrasonic generators are evenly distributed on the long-to-high surface of the vibrating part, such as... Figure 3B , 3E .

[0143] The length of the ultrasonic vibrating plate matches the width of the safe cleaning surface of the activated carbon tank; the height is 1 / 3 to 1 / 2 of the height of the filter media 51 in the filter tank, that is, the ratio of the height of the ultrasonic vibrating plate to the height of the filter media in the filter tank is 1:(2-3); the thickness matches the height of the ultrasonic generator installed inside it.

[0144] In use, several (at least one) ultrasonic transducers are arranged parallel to each other along the length of the activated carbon filter. The length of each ultrasonic transducer is consistent with the width of the safe cleaning surface of the activated carbon filter. The ultrasonic transducers are placed vertically along the depth direction of the filter, extending vertically into or out of the activated carbon layer and water body of the activated carbon filter. Adjacent ultrasonic transducers are parallel to each other, and the distance between two adjacent ultrasonic transducers is 75-120cm. The distance between the ultrasonic transducer closest to the filter wall along the width direction and the filter wall is 75-120cm.

[0145] In this specific embodiment of the invention, the activated carbon filter is divided into two half-pools, and the length of each ultrasonic transducer plate matches the width of the activated carbon half-pool. The ultrasonic transducer plate is made of stainless steel, with a length of 2200mm, a height of 500mm, and a thickness of 100mm. The ultrasonic generator has a single power of 100-200W and a transmitter frequency of 25KHz.

[0146] The upper bottom surface of the vibrating part is fixedly connected to the lifting device, and the lower bottom surface is integrally connected to the purging part. The upper and lower bottom surfaces of the vibrating part are the two long and thick surfaces of the vibrating part.

[0147] The bottom side of the purging section is integrally connected to the bottom surface of the vibrating section, and a partition 13 is provided between the bottom side of the purging section and the bottom surface of the vibrating section. The shape and size of the partition are the same as those of the bottom surface of the vibrating section, thus separating the vibrating section and the purging section into two relatively independent spaces.

[0148] The purging section is a horizontally placed, hollow, right triangular prism. Its two parallel end faces are isosceles triangles, forming isosceles end faces 121. The base of the isosceles triangle extends along the length of the vibrating section (i.e., the width of the filter bed), forming a plane called the basal lateral surface of the purging section, the length of which is the same as the length of the lower base of the vibrating section. The two sides of the isosceles triangle end faces of the purging section extend along the length of the vibrating section, forming two planes called the lateral lateral surfaces 122, the length of which is the same as the length of the vibrating section. The vertex where the two sides of the isosceles end faces meet is far from the lower base of the vibrating section.

[0149] The base of the isosceles triangle on the two end faces of the purging section is the same thickness as the vibrating section, and the apex angle of the isosceles triangle is less than 60° (preferably 30-60°, more preferably 30-45°, and even more preferably 45°), with the apex angle of the isosceles triangle being far away from the vibrating section. The straight line formed by extending along the length of the vibrating section from the intersection of the two side faces of the purging section, i.e., the apex of the isosceles triangle, is the apex angle line of the purging section, which is rounded to form the arc section 18.

[0150] An air inlet (not shown in the figure) is opened on one of the two parallel isosceles end faces of the purging section. It is connected to an air compressor (not shown in the figure) located outside the filter tank through an air inlet pipe 15. Air with a certain pressure is introduced into the purging section of the ultrasonic cleaning device, and then air is blown into the activated carbon filter layer. The air with a certain pressure is introduced and blown loose the filter material 51 through the exhaust hole 14, which facilitates the depth of the ultrasonic vibrating plate into the carbon filter tank filter material.

[0151] The other isosceles end face of the purging section is closed; several exhaust holes 14 are evenly opened on its two lateral sides 122 at a certain distance (usually 2-5mm) from the apex of the arc of the arc section, so as to evenly discharge the gas introduced into the ultrasonic cleaning device, thereby loosening the carbon layer. The diameter of the exhaust holes is less than 10mm (preferably 2-7mm, more preferably 3-5mm, and 5.5mm in this embodiment). The distance between two adjacent exhaust holes is 100-300mm, and the distance between the exhaust hole near the end face of the purging section and the end face is 50-150mm. The positions of the exhaust holes on the two lateral sides can be alternately arranged or correspondingly arranged.

[0152] In this embodiment, there are 7 secondary beams and 7 ultrasonic cleaning devices. Each ultrasonic cleaning device can be composed of one ultrasonic transducer plate, or two or more ultrasonic transducers plated together. In this specific embodiment, each ultrasonic cleaning device is composed of two ultrasonic transducers plated together. The ultrasonic transducers plate are placed vertically and arranged parallel to each other along the width of the activated carbon filter.

[0153] like Figure 3C Each ultrasonic transducer has an ultrasonic power cable hole 17 on the top surface of its vibrating part. The power cable passes through the power cable hole and is electrically connected to the ultrasonic power supply cabinet to provide power to the ultrasonic generator. Two ultrasonic transducer flanges 16 are provided on the top surface of the vibrating part of each ultrasonic transducer. The ultrasonic transducer flanges are used to fix and connect to the liquid phase extension component of the lifting device.

[0154] The ultrasonic transducer plate is fixedly installed at the lower end of the lifting device and is fixedly connected to the extension rod of the underwater extension component of the lifting device through flanges. Each ultrasonic transducer plate is fixedly installed at the lower end of the two extension rods of the extension component through two flanges. The lifting of the lifting machine drives the extension component to lift, thereby driving the ultrasonic transducer plate to lift. That is, by lifting the lifting machine, the ultrasonic transducer plate is raised or lowered, so that the ultrasonic transducer plate is raised or extended into the filter material layer.

[0155] The depth of the ultrasonic transducer penetrating the carbon layer is continuously adjustable; the ultrasonic transducer can be raised above the operating water surface for movement and hoisting without affecting the carbon filter. The ratio of the ultrasonic transducer's penetration depth into the carbon layer to the total carbon layer depth ranges from 30% to 70%. After entering the filter media layer, the ultrasonic transducer performs ultrasonic cleaning. After reaching the predetermined ultrasonic treatment time (usually 5-30 minutes), the carbon filter is rinsed with water. As the carbon layer expands, the transducer rises above the water surface of the filter. Then, with the aid of a translation device, it moves to the next cleaning position; finally, with the aid of a lifting device, it descends back into the filter media layer to continue the next ultrasonic cleaning cycle.

[0156] like Figure 4AThe lifting device includes: a lifting machine (a double-screw lifting machine is selected in the first embodiment of this utility model), a lifting sensor 42, and an underwater extension component. The lifting device raises or lowers the ultrasonic vibrating plate, adjusts the height of the ultrasonic vibrating plate in the filter tank, regulates the rising and falling of the ultrasonic vibrating plate, and adjusts the depth of the ultrasonic vibrating plate entering the activated carbon layer of the filter tank. The lifting sensor measures the rising or falling height of the ultrasonic vibrating plate and controls the rising or falling height of the ultrasonic vibrating plate.

[0157] In one embodiment of this utility model, the lifting mechanism is selected as a double-linked screw jack (also known as a linked screw jack), comprising: one lifting motor 41, two lifting reducers (not shown in the figure), two linked screws 43, one screw drive shaft 44, and two screw assemblies (also known as gearboxes, or gear-assemblies) 44A. A horizontal screw support 431 extending horizontally along a horizontal plane is fixedly installed at the top of one screw of the double-linked screw jack.

[0158] like Figure 4B The underwater extension assembly includes two vertical (i.e., along the depth direction of the carbon filter layer) parallel extension rods 46 and two horizontal (i.e., along the water surface direction of the carbon filter layer) connecting rods 47. The extension rods and connecting rods are perpendicular to each other and are in the same vertical plane. The extension rods and connecting rods are integrally connected. The upper and lower ends of the extension rods are fixedly connected to extension rod flanges 46A.

[0159] A submersible extension assembly is used in conjunction with a double screw jack. The lower part of the extension rod is fixedly connected to the upper bottom surface of the ultrasonic transducer via a flange. The length of the connecting rod matches the spacing between the two flanges on the upper bottom surface of the ultrasonic transducer. The spacing between the two screws matches the length of the connecting rod.

[0160] Two ultrasonic transducer flanges on the top surface of each ultrasonic transducer plate are connected to the bottom of two extension rods of the underwater extension assembly. The upper part of the underwater extension rod is fixedly connected to the lower part of the screw of the double screw jack (e.g., riveting, fitting, flange connection). The double screw jack raises or lowers the ultrasonic transducer plate. A flange is fixedly installed at the bottom of the screw, and the bottom flange of the screw is a bearing support structure. When the screw rotates, the bottom flange does not rotate, and the screw moves up and down along the depth direction of the filter bed.

[0161] In one embodiment of this utility model, the screw jack is a type 1 structural jack (i.e., a turbine screw jack, model SWL electric screw jack), in which the screw simultaneously rotates and moves axially. The motor of the screw jack converts the rotation of the motor into the up-and-down movement of the screw through a transmission mechanism. The screw passes through the secondary beam and moves up and down, thereby driving the ultrasonic plate of the ultrasonic cleaning device installed at the lower end of the screw to move up and down.

[0162] The lead screw 43 and lead screw drive shaft 44 rotate and are connected to the lead screw assembly (referred to as gear-assembly 44A) via a gearbox. The gear-assembly has a hollow structure in both the transverse and longitudinal directions, which is fixed to the secondary beam by flanges; the lifting sensor is fixedly installed (e.g., with bolts) on one side of either gear-assembly. The lead screw passes through the gearbox and the internal gears mesh to make the lead screw drive shaft rotate unidirectionally, thereby ensuring that the two lead screws move in the same direction.

[0163] The gear assembly and lifting sensor are fixed to the secondary beam. The lead screw passes through the vertical hollow structure of the gear assembly, runs vertically through the secondary beam and the gear assembly, and extends along the depth direction of the filter bed. The lead screw passes through the secondary beam and is fixedly connected to the underwater extension assembly located below the secondary beam. The underwater extension assembly is fixedly connected to the upper bottom surface of the ultrasonic transducer plate. The lower end of the lead screw is fixed to the ultrasonic transducer plate through the extension assembly fixed to the upper bottom surface of the ultrasonic part of the ultrasonic transducer plate. The top end of the lead screw is fixedly connected to the pull rope of the lifting sensor (pull rope displacement sensor).

[0164] When the equipment is working, the lead screw lifting motor starts, and the lead screw moves vertically. The top of the lead screw is connected to the pull rope lifting sensor by a pull rope (the pull rope is parallel to the lead screw), transmitting the position signal to the control system. At the same time, the gear-assembly is horizontally connected to the lead screw drive shaft 44, and the shaft rotation drives the two lead screws to move synchronously. The lead screw is a one-piece structure, with the threaded main body at the top and the flange at the bottom forming a bearing support structure (i.e., the lead screw body rotates while the flange remains stationary). The lower flanges of the two lead screws in the same lifting structure are respectively riveted to the upper flanges of the two vertical extension rods at the top of the underwater extension assembly by four screws. The top and bottom of the vertical extension rods of the underwater extension assembly are flange structures. The lower flange of the extension rod is fixedly connected to the flange on the bottom surface of the ultrasonic vibrating plate and bolted in place. The lead screw moves up or down, which in turn moves the ultrasonic vibrating plate, which is installed below the lifting device, up or down in conjunction with the underwater extension rod, pulling the ultrasonic vibrating plate out or inserting it into the activated carbon filter layer.

[0165] The transmission mechanism of the screw jack is a known mechanism in the art, which converts the rotation of the motor into the up and down movement of the screw. The connection between the extension rod of the underwater extension assembly and the ultrasonic transducer is a conventional connection in the art. Each ultrasonic transducer is fixedly connected to one double screw jack. The screw is made of carbon steel, while the screw drive shaft and screw horizontal frame are made of stainless steel. The underwater extension assembly is made of stainless steel.

[0166] The lifting sensor is a pull-wire displacement sensor, consisting of a stretchable stainless steel rope 421 wound around a threaded hub, which is connected to a precision rotation sensor. The pull-wire displacement sensors are installed close to one side of the first flange (fixed position). One end of the stainless steel pull wire of the sensor is fixed to the top of the lead screw of the lifting device, and the other end is wound around the hub, which is fixed to the secondary beam. Figure 4C .

[0167] The pull rope sensor is fixedly installed on the upper part of the secondary beam, near the gear assembly. Its stainless steel pull rope is fixed to the horizontal bracket of the lead screw at the top of the lifting device. The linear motion direction of the pull rope is parallel to the axis of the lead screw. When the lead screw moves up and down, the pull rope extends and retracts, monitoring the distance the lead screw moves up and down. When the lead screw moves downward, into the filter media of the filter bed, the pull rope sensor monitors the distance the lead screw has moved downward. The threaded hub drives the rotation sensor to rotate, outputting an electrical signal proportional to the distance the pull rope has moved. When the lead screw moves down to the set position, the pull rope sensor transmits the signal to the control system, and the lead screw stops moving downward. After the ultrasonic cleaning of the ultrasonic vibrating plate is completed, when the lead screw moves up to the predetermined position, the pull rope sensor similarly transmits the output signal to the control system, and the lead screw stops rising. The sensor output signal can be used to determine the distance the lead screw has moved.

[0168] Each set of double screw jacks can have a horizontally extending screw level 431 fixed (welded or riveted) at the top of any screw (the front screw in this example). The screw level 431 is connected to one end of the stainless steel rope of the lifting sensor, and the other end of the stainless steel rope is fixed inside the hub of the lifting sensor to measure the depth of the ultrasonic transducer into the activated carbon filter layer and feed the measurement value back to the mobile handheld terminal.

[0169] like Figure 4D Another embodiment of the lifting platform in this utility model is a scissor lift, comprising a lifting crane module 45 (the lifting crane module consists of a lifting motor and a reducer), a lowering electric cylinder 45A, a scissor telescopic mechanism 48 made of carbon steel, and an upper support 49 and a lower support 49A installed on the upper and lower ends of the scissor telescopic mechanism. Scissor lifts are commonly used industrial equipment.

[0170] The hoisting crane module is fixedly installed on the upper surface of the secondary beam; the upper support of the scissor lift is fixed (e.g., welded, riveted, etc.) on the lower surface of the secondary beam, and the lowering electric cylinder is fixedly installed on the upper support; the rope sensor is installed on the side of the upper support.

[0171] Because the scissor lift mechanism has a large travel range, the extension and retraction of the lifting device are driven by two different independent methods. The lower end of the lifting mechanism is lifted (scissor lift retraction) by a lifting crane (commonly known as an electric hoist), and the lower end of the lifting mechanism is lowered (scissor lift extension) by a lowering electric cylinder.

[0172] like Figure 4DA set of scissor lifts and an ultrasonic transducer are connected by two vertically parallel extension rods 46 of the same length. The upper and lower ends of the extension rods are fixedly connected to flanges, with the upper flange fixedly connected to the lower support of the scissor lift (e.g., by welding, riveting, etc.) and the lower flange fixedly connected to the flange on the bottom surface of the ultrasonic transducer.

[0173] The connection between the extension rod of the underwater extension assembly and the ultrasonic transducer is a conventional connection in the field.

[0174] In Embodiment 2 of this utility model, the lifting sensor is also a pull-rope displacement sensor. The principle and structure are the same as those described in Embodiment 1. The pull-rope displacement sensor is arranged close to the lifting device and installed on the upper surface of the secondary beam of the translation component. One end of the stainless steel pull rope is wrapped around the hub, and the hub is riveted and fixed to one side surface of the upper bracket of the scissor telescopic mechanism. The other end of the stainless steel pull rope is fixed to the same side surface of the lower bracket of the scissor telescopic mechanism. The linear movement direction of the pull rope is parallel to the telescopic direction of the scissor mechanism. During operation, it extends and retracts with the scissor structure to monitor the lifting and lowering distance of the lower bracket of the scissor telescopic mechanism.

[0175] When using the cleaning equipment of this utility model for filter cleaning, a screw jack, a scissor lift, or both can be used simultaneously. Figure 1A , 1B 1C.

[0176] As shown in Figure 1, the control device includes: a main electrical control cabinet (not shown in the attached figure) and a secondary beam electrical control cabinet 21, wherein:

[0177] Main electrical control cabinet (also known as main control unit): Located on the walkway beside the activated carbon filter pool, it supplies power to the secondary beam electrical control cabinets via electrical wires and collects signals from the control units via a local area network.

[0178] The secondary beam electrical control cabinet (also known as the sub-control device) is fixedly installed on the upper part of the secondary beam. It provides power to the ultrasonic power supply cabinet, lifting motor, lowering cylinder, and lifting sensor of the lifting device, and the drive motor, horizontal displacement sensor, and anti-collision sensor of the translation device. Simultaneously, it receives electrical signals from the lifting sensor, horizontal displacement sensor, and anti-collision sensor to control the start and stop of the screw jack motor, the scissor lift crane module, the lowering cylinder, and the drive motor.

[0179] The main electrical control cabinet is equipped with a PLC and a touch screen. Operators can operate the system via the touch screen and also communicate remotely via the network. One end of the main control unit box is connected to a 150kW reserved power supply, and the other end is connected to the sub-control devices on the seven secondary beams. This provides power to the sub-control cabinets and coordinates the movement of the secondary beams via signals, including the translation device, the lifting device, and the start / stop of the single ultrasonic vibrating plate.

[0180] Both the main power control cabinet and the secondary beam power control cabinet use conventional power distribution and control devices in this field.

[0181] Each secondary beam is equipped with a secondary beam electrical control cabinet, which is usually fixedly installed at the front or rear end of the secondary beam. The secondary beam electrical control cabinet is connected to the external power supply through the main electrical control cabinet, which performs overall power distribution and coordination control. In order to enable mobile terminal to view the system operation status and control the start and stop of the control system, three basic control modes are implemented: automatic, APP remote control mode and local manual operation. A handheld mobile terminal and communication card are provided with the system.

[0182] The main electrical control cabinet is used for setting device parameters, including: ultrasonic transducer status setting, adjacent ultrasonic transducer spacing setting, cleaning position setting, cleaning depth setting (i.e., setting the depth to which the ultrasonic transducer penetrates the activated carbon filter layer), ultrasonic transducer working stage setting, and ultrasonic transducer working time setting.

[0183] The ultrasonic vibrating plate can be categorized into three states: static, descending, and ascending. When not in operation, the ultrasonic vibrating plate is static, suspended above the filter bed. It operates when the expansion of the activated carbon layer reaches 30% or more (through backwashing of the activated carbon filter bed; the backwashing intensity is 8-12 L / sm). 2 To achieve an expansion of the carbon layer of over 30%, activate the lifting device to lower the ultrasonic plate to the predetermined carbon layer depth (70±30cm, i.e., ultrasonic cleaning depth 40-100cm). Then, start the ultrasonic power cabinet to begin ultrasonic cleaning. During ultrasonic cleaning, turn off the water rinse and keep only the ultrasonic plate in operation.

[0184] When the equipment is started, the lifting motor drives the double lead screw to move downwards, causing the flange at the bottom of the lead screw and the underwater extension assembly connected to the flange to descend smoothly. During the vertical movement, with the upper surface of the secondary beam as the horizontal reference, the length of the exposed part of the lead screw is consistent with the length of the connected stainless steel rope. When the lifting sensor detects that the length of the stainless steel rope is equal to the set value (the descent depth of the ultrasonic vibrating plate), it sends a signal to the secondary beam electrical control cabinet, which stops the rotation of the lead screw and ends the downward displacement of the lifting assembly. The ultrasonic cleaning device is supported at the lower end of the above-mentioned lifting device, thereby achieving descent to the designated working position and starting ultrasonic cleaning.

[0185] After the ultrasonic plate of the ultrasonic cleaning device performs ultrasonic cleaning for 5-10 minutes, the backwash water pump is turned on for 5 minutes of water rinsing. At the same time, the lifting device is turned on, and the lifting motor raises the ultrasonic plate. The lifting height of the ultrasonic plate is measured by the lifting sensor and controlled until the arc part of the blowing part of the ultrasonic plate of the ultrasonic cleaning device is 0.5-1.0m away from the surface of the activated carbon filter layer, and then the rising stops.

[0186] According to the program settings, the main control cabinet of the control device sends a signal to the control cabinet of the secondary beam on each secondary beam, and the drive motor-reducer of the secondary beam translation device starts to work.

[0187] The working principle of the cleaning equipment for restoring the adsorption capacity of activated carbon filter media of this invention is as follows (taking a screw jack as an example):

[0188] 1. Backwashing begins when the head loss of the activated carbon filter reaches a predetermined value or the effluent quality is substandard. First, the secondary beam control cabinet is activated through the main control cabinet of the control device. The secondary beam control cabinet then activates the lifting motor of the lifting device, causing the lead screw to descend. The bottom end of the lead screw is connected to the underwater extension component via a flange, and the ultrasonic plate of the ultrasonic component is connected to the underwater extension component via a flange, and descends together. The lifting sensor (pull rope displacement sensor) of the lifting device detects the descent depth of the ultrasonic plate. When the lifting sensor detects that the length of the stainless steel rope has reached the intermediate position of the ultrasonic plate (i.e., the arc of the blowing part of the ultrasonic plate of the ultrasonic component is 0.5-1.0m away from the surface of the activated carbon filter layer), it sends a signal to the secondary beam control cabinet, the lead screw lifting motor is de-energized, the lead screw stops rotating, and the lifting device stops descending.

[0189] 2. Turn on the backwash water pump to backwash the filter bed (3-5 minutes) until the expansion of the activated carbon layer in the filter bed reaches more than 30%.

[0190] The backwashing cycle for activated carbon filters is typically 4-6 days, with a water washing intensity of 8-12 L / sm. 2 .

[0191] 3. The control device restarts the lifting motor of the lifting device. The lead screw lifting motor rotates, driving the lead screw to descend. The underwater extension component and ultrasonic transducer descend together. The lifting sensor (rope displacement sensor) of the lifting device detects the descent depth of the ultrasonic transducer. The descent depth of the ultrasonic transducer is consistent with the descent depth of the lead screw. That is, when the lifting sensor detects that the length of the stainless steel rope reaches the bottom depth of the ultrasonic transducer (that is, the arc part 18 of the ultrasonic component's purging part descends to the depth below the activated carbon filter layer, and the arc part 18 of the purging part reaches the predetermined carbon layer depth, usually 40-100cm), a signal is sent to the secondary beam electrical control cabinet. The lead screw lifting motor is de-energized, the lead screw stops rotating, and the lifting device stops descending.

[0192] When using a scissor lift, the control device activates the lowering cylinder, driving the lower support of the scissor lift to descend. The scissor telescopic mechanism extends, and the underwater extension rod and ultrasonic vibrating plate descend together. The lifting sensor (rope displacement sensor) fixed to the side of the upper support of the scissor lift detects the descent distance of the lower support, thus characterizing the descent depth of the ultrasonic vibrating plate. That is, when the lifting sensor detects that the length of the stainless steel rope has reached the depth to which the ultrasonic vibrating plate has descended to the bottom, it sends a signal to the secondary beam electrical control cabinet, the lowering cylinder of the scissor lift is de-energized, the telescopic mechanism stops extending, and the lifting device stops descending.

[0193] 4. The main control cabinet of the control device starts the secondary beam control cabinet, and the secondary beam control cabinet turns on the ultrasonic power supply to supply power to the ultrasonic generator in the ultrasonic plate to perform ultrasonic cleaning. Ultrasonic cleaning (5-15 minutes, preferably 10 minutes) is performed. During ultrasonic cleaning, water washing is turned off, and only the ultrasonic plate is kept working.

[0194] 5. After ultrasonic cleaning for 5-15 minutes, turn off the ultrasonic power supply using the control device to stop the ultrasonic cleaning.

[0195] 6. Turn on the backwash water pump to backwash the filter until the expansion of the activated carbon layer in the filter reaches more than 30%.

[0196] 7. During the water backwashing process, turn on the lifting device, that is, turn on the screw lifting motor to drive the screw to rise, and the underwater extension component and ultrasonic transducer plate rise together. When the lifting sensor detects that the ultrasonic transducer plate has been raised to the intermediate position, turn off the lifting motor through the secondary beam electrical control cabinet to stop the rise.

[0197] When using a scissor lift, the control device activates the lifting module of the scissor lift, the lower end of the lifting mechanism is raised (the scissor telescopic mechanism retracts), the underwater extension rod and the ultrasonic vibrating plate rise together. When the lifting sensor detects that the ultrasonic vibrating plate has been raised to the intermediate position, the lifting motor is shut off through the secondary beam electrical control cabinet to stop the rise.

[0198] 8. The drive motor of the secondary beam drive module of the translation device is activated through the main electrical control cabinet, which drives the transmission shaft to rotate and drives the drive wheel of the moving roller group of the secondary beam rolling module to rotate.

[0199] The drive module of the secondary beam translation device starts working, the drive shaft rotates, which drives the drive wheels connected to both ends of the drive shaft to rotate, and then drives the driven wheels to rotate, causing the secondary beam to move horizontally left and right along the length of the activated carbon pool above the activated carbon pool. At the same time, the driven wheels roll synchronously under the action of inertia. Its function is to ensure the stability of the secondary beam and increase the driving area.

[0200] During the movement of the secondary beam on the main beam, the limiting block of the secondary beam limiting component slides on the side of the upper flange plate of the main beam, and the limiting wheel rolls below the upper flange plate of the main beam. Both play a protective role, providing buffer by filling the gap between the secondary beam and the main beam, reducing friction, and limiting the non-smooth movement of the moving component, preventing the secondary beam from shifting or even derailing in the vertical and horizontal directions on the surface of the activated carbon pool.

[0201] The horizontal displacement sensor of the ranging component on the secondary beam is installed on the left (or right) side of the secondary beam to monitor the horizontal movement distance of the secondary beam. The anti-collision sensors installed on the left and right sides of the secondary beam monitor the horizontal distance between two adjacent secondary beams in real time to prevent collisions during the translation process. The horizontal movement (left and right movement) of the secondary beam on the main beam drives the lifting device installed on the secondary beam to move horizontally, which in turn drives the ultrasonic cleaning device installed below the lifting device to move horizontally, that is, adjusts the horizontal displacement distance of the ultrasonic plate (usually 20-30cm, measured by the horizontal displacement sensor). The ultrasonic plate moves horizontally left and right by 20-30cm. When the horizontal displacement sensor detects that the movement distance has reached the movement value, it sends a signal to the control device, shuts down the drive motor of the drive module, stops the transmission shaft from rotating, stops the rolling module from rotating, and the secondary beam ends its displacement.

[0202] 9. After the ultrasonic cleaning device moves a certain distance, turn on the lifting device again and repeat step 3). The ultrasonic plate in the intermediate position will be lowered vertically again. The distance of the arc of the ultrasonic plate of the ultrasonic cleaning device descending will be measured by the lifting sensor until the arc of the blowing part reaches the predetermined carbon layer depth. Then, the lifting device will be turned off by the control device to stop the descent. Then, the water backwash pump will be turned off to stop the water backwashing process.

[0203] 10. Repeat steps 3), 4), 5), 6), 7), 8), and 9) until the entire carbon layer in the filter bed is ultrasonically cleaned from left to right.

[0204] During the use of this utility model device, water backwashing is performed; ultrasonic cleaning is performed after the ultrasonic plate descends to the predetermined carbon layer depth; a second water backwash is performed, and during the second water backwash, the ultrasonic plate is raised to the intermediate position, the horizontal distance of the ultrasonic plate is adjusted, and the ultrasonic plate descends to the predetermined carbon layer depth; water backwashing is stopped and ultrasonic cleaning is performed again, which constitutes one ultrasonic water washing cycle using the cleaning equipment of this utility model.

[0205] During ultrasonic cleaning, the water rinse should be turned off, and only the ultrasonic plate should be kept working. The horizontal spacing of the ultrasonic plate can be adjusted after each time the ultrasonic plate is raised to the intermediate position.

[0206] After each left-to-right translation, ultrasonic cleaning takes 5-15 minutes. Then, turn off the ultrasonic power and stop the ultrasonic cleaning to begin the next ultrasonic water washing cycle. Repeat the ultrasonic and water washing cycle for 3-6 cycles until all the filter media in the activated carbon filter layer is cleaned.

[0207] The cleaning equipment of this invention can be used to hoist and transfer the secondary beam, equipped with ultrasonic cleaning, lifting, and translation devices, to the other half of the filter bed using the existing overhead crane in the waterworks. Once the entire filter bed repair and cleaning is completed, normal filter bed operation begins.

[0208] Modular ultrasonic systems can be moved to other filters or other water plants, offering advantages such as easy assembly and cost savings.

[0209] The above embodiments of this utility model are merely exemplary and do not constitute any limitation on the scope of this utility model. Those skilled in the art should understand that modifications or substitutions to the details and form of the technical solution of this utility model can be made without departing from the spirit and scope of this utility model, but all such modifications and substitutions fall within the protection scope of this utility model.

Claims

1. A cleaning device for restoring the adsorption capacity of activated carbon filter media, characterized in that, It includes an ultrasonic cleaning device, a lifting device, a translation device, and a control device, wherein: Ultrasonic cleaning device: Installed at the bottom of the lifting device, it is used to perform ultrasonic treatment on the filter media of the activated carbon filter bed to be repaired, so as to repair the activated carbon. Lifting device: Installed on the translation device, used to raise or lower the ultrasonic cleaning device, so that the ultrasonic cleaning device can move up and down in the depth direction of the activated carbon filter to be repaired; Translation device: Installed on the upper part of the activated carbon filter to be repaired, it is used to move the lifting device horizontally left and right or back and forth, thereby driving the ultrasonic cleaning device to move horizontally left and right or back and forth. Control device: Installed on the side of the translation device and filter tank, used to regulate the start and stop of the ultrasonic cleaning device, the ultrasonic emission frequency, emission power, and running time; regulate the horizontal movement distance of the translation device; and regulate the rising and falling distance of the lifting device.

2. The cleaning equipment as described in claim 1, characterized in that, The translation device includes: two main beams, two or more secondary beams, and secondary beam moving components, secondary beam moving limiting components, and secondary beam ranging components installed on the secondary beams. The main beams are fixed to the upper part of the pool wall along the length of the activated carbon filter to be repaired; The secondary beams are installed above the main beams, perpendicular to the main beams, and parallel to each other. The secondary beams can move left and right or back and forth along the length of the main beams. The secondary beam moving assembly is used to move the secondary beam horizontally left and right or forward and backward. The secondary beam movement limiting component is used to prevent the secondary beam from shifting during horizontal movement, ensuring that the secondary beam always moves horizontally along the length of the main beam. The secondary beam distance measuring component is used to measure the distance the secondary beam moves on the main beam, adjust the spacing between two adjacent secondary beams, and adjust the spacing between the secondary beam and the filter wall in the width direction to avoid collisions between secondary beams and between the secondary beam and the filter wall.

3. The cleaning equipment as described in claim 2, characterized in that, The secondary beam moving assembly includes a drive module and a rolling module, wherein: a secondary beam rolling module is fixed at each end of each secondary beam, and the rolling module is set on the upper surface of the main beam. The secondary beam rolling module rolls on the upper surface of the main beam, driving the secondary beam to move on the main beam; the secondary beam drive module is installed on the left or right side of the secondary beam; the secondary beam drive module drives the rolling module to roll on the upper surface of the main beam.

4. The cleaning equipment as described in claim 2, characterized in that, The secondary beam movement limiting assembly includes: a limiting bracket, a limiting wheel, and a limiting block, wherein: The limiting bracket is connected to the secondary beam, the secondary beam moving assembly, and the main beam; the limiting block is fixed on the limiting bracket and has a slot, which engages with the main beam. The slot matches the thickness of the upper flange plate of the main beam and slides along the length of the main beam; the limiting wheel is fixed on the limiting bracket and located below the limiting block. The limiting wheel contacts the lower surface of the upper flange plate of the main beam and rolls as the secondary beam moves on the main beam, preventing the secondary beam from displacing vertically on the surface of the activated carbon tank.

5. The cleaning equipment as described in claim 1, characterized in that, The lifting device includes a lift and a lifting displacement sensor, wherein the lift is selected as a screw jack or / and a scissor lift.

6. The cleaning equipment as described in claim 1, characterized in that, The ultrasonic cleaning device includes: an ultrasonic transducer plate and an ultrasonic power supply cabinet that provides power to the ultrasonic transducer plate, wherein several ultrasonic generators that are electrically connected to the ultrasonic power supply cabinet are fixedly installed inside the ultrasonic transducer plate.

7. The cleaning equipment as described in claim 6, characterized in that, The ultrasonic transducer plate includes a vibrating section and a purging section, which are separated into two independent spaces by a partition. The purging section is located below the vibrating section, and the vibrating section and the purging section are integrally connected. Several ultrasonic generators are fixedly installed inside the vibrating section. Air holes are opened in the lower part of the purging section.

Images